Plow-colter.



W. W. CAMERON.

PLOW COLTER.

APPLICATION FILED ocT. I. 1915.

Patented oef. 23,1917.

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WILLIAM W. CAMERON, or LncnossnWIsooNsIN, .essIGNon 'ro LA cnossn -rLoWCOMPANY, or LA cnossn, WISCONSIN. Y

PLOW-comun.

To all whom t may concern.'

Be it known that I, WILLIAM W. CAMERON, a resident of La Crosse, in thecounty of La Crosse and State of Wisconsin, have in* vented certain newand useful Improvements in Plow-Colters, of which the following is afull, clear, and eXact description.

This invention relates to plow colters.

One object of the invention is to provide means that will overcomey thetendency in the forks of colter blades to twist and throwv the bladesout of true when traveling in the ground.

Another object of the invention is to provide efficient means for takingup wear in the bearings and prevent wabbling of the blade thereon. l Y

Another object of the invention is toA provide an improved hub thatVwill be self centering in assembling upon the blade, efficientlycooperate with the bearing, vhe

cheaply produced and reduce the parts nec-l essary for the V.user tokeep on hand for repairs.

The invention consists in the several novel features hereinafter setforth, and more particularly defined vby claims atthe conclusionthereof.z f

In the drawings Figure l is a vertical sectional view through the.center of the hub and bearing of my improved colter seen from the rear,and showing the adjusting washers between the inner ends of the bearingsections. Fig. 2 is a similar view on a reduced scale with the washersomitted' and showing a partial view in section of the opposed protrudingand recessed half rings of the hub sections. Fig. 3 is a detail insection of one-half of a hub section showing the ends of the protrudinghalf ring and the tapered bearing surface corresponding to the taper ofthe bearing section. Fig. 4 is a detail in elevation of the inner faceof one of the hub sections, showing the protruding half ring and thecorresponding recessed half ring. Fig. 5 is a view similar to Fig. 3 butfrom the opposite direction and showing the recessed half ring.

l and 2 are the rear ends of the two arms of the fork of a colteradapted to yield under clamping pressure, the forward end being brokenaway, the socket and shank of the colter not being shown. 3 and 3 .arethe rear ends of these fork arms respectively, the bolt 4a passingthrough both the rear Specification `of Letters Patent.

Application led October 1, 1915. Serial No. 53,597.

ends.. 4 and 5 are the two opposed sections of the bearing,beingseparated from each otherat their inner ends by the spacing washers8. 6 and 7 are the opposed hub sections, riveted or bolted yto therespective sides of the colter blade A. These two sections-of the hubare duplicates in construction, the bearing orificek being flared fromthe end adjacent the colter blade to the outer end of the hub, having atapered orifice 6a corresponding to the taper of thebearing section.

Adjacent the center orice of the hub section is formeda protruding halfring 9, see Figs. l, 2, 3 and 4, projecting inwardly within the centralorifice in the blade A toward the opposed hub section, the inner end ofthe protrusion being seated within the recess half ring l0 therein.vThis construction is such that when the inner faces of the ,duplicatehub sections are broughttogether the projecting half ring of one sectionwill enter the corresponding recessed half ring of the opposite one,making a practically unbroken surface. from end to end of the hub, theopening being tapered outwardly from the center to the outer end, beingtapered in each direction from the center to the outer end correspondingtothe double taper of the hub. The hub has an end thrust against thegrooves 4c and 5? in the outer end of the bearing sections respectivelyby means of the end 6b of the hub sections as is shown in Fig. 1, aswell as taking end thrust by means ofthe longitudinally opposed taperedsurfaces. 'Y

It is manifest, as shown in Fig. 1, that the two arms l and 2 of thefork are, by means of the bolt 4a and nut 4b, the two bearing sections 4and 5 and the intervening washers 8 fastened rigidly and firmlytogether, resulting in asolid, unyielding frame work that can not beeasily sprung out of shape by strains, and upon which the colter bladecan be mounted securely. and that if j excessive wear occurs the amountof spacing 8 between the ends of the bearing section can be regulated toa nicety by changing the thickness ofthe intervening washers so as totake up all wear and keep the blade running true and without Wabbling,and without binding of the bearing upon the hub.

In the usual means for taking up wear, a center clamping bolt and nutare used to bring some portion of the bearing closer to the hub, butthere being no resisting connection between the bearing surfaces exceptthe hub itself, it is almost impossible to secure the nice adjustmentdesirable to make a good easy running fit, and the fit is either tooloose7 permitting wabbling of the blade` or too tight, making the bladerun too hard or preventing its turning altogether.

The two sections of my improved hub turning upon this rigid bearing are7by means ot the protruding half ring and corresponding recessed haltring iitting one within the other made practically as if .oit one piecewith a continuous bearing surface from end to end and are selfcentering` withiii the orifice ot the blade and upon the bearing, andtend to support the blade more securely and truly upon the bearing.

In shop practice but one hub section is made, and in assembling the hubupon the blade one piece reversed upon the other7 saving both the numberof different pieces used and space upon the bench of the workmenrequired by two different hub sections.

rhe invention is not be understood as restricted to the precise detailsshown and described, since these can be varied without departing` fromthe spirit and scope of the invention.

Having thus described the invention, what l claim new and desire tosecure by Let# ters Patent is:

l. In plow colter, the combination of a forli, a bearing mounted betweenthe arms of the forl, with a colter blade mounted to rotate around thebearing, a hub for the blade comprising sections rigidly secured to thesides of the blade respectively and to each other with portions of eachhub section passing through the space between the hub and the orifice otthe blade.

2. ln a plow colter7 the combination of a Gopes o1." this patent may beobtained for fork,

and a bearing mounted between the arms of the fork, with a oolter blademounted to rotate around the bearing and having a center orifice largerthan the diameter of the bearing, a hub for the blade to rotate upon thebearing comprising sections secured to the sides et the bladerespectively, oriiices within the sections fitting the bearing surfaces,each section of the hub having a laterally projecting halt-ring bosspassing through the space between the bearing `and the oriiice in theblade and entering a corresponding recessed half-ring in the face of theopposite hub section.

3. ln a plow colter, the combination of a fork, and a bearing mountedbetween the arms of the fork, wi th a colter blade mounted to rotatearound the bearing and having an orilice larger than Ythe diameter ofthe hearing, a hub for the blade to rotate upon the bearing comprisingsections rigidly secured to the sides of .the blade respectively `andconcentric therewith and having .orifices iitting the bearing, eachsection having a laterally projecting element passing through the oriicein the blade and .entering a corresponding recess in the face of theopposite hub section.

ln a plow colter, the combination of a fork7 and a bearing mountedbetween the arms of the fork, with a colter blade mounted to rotatearound the bearing and having an oritice concentric with its axis 'andlargerY than the diameter of the bearing, and hub' sections secured tothe respective sides of the blade, each section being a duplicate of theother and having va protusion entering a' corresponding depression inthe opposite hub section.

WLLIAM lV. CAMERON. Witnesses:

C. B. Scnonnne, A. J. BRUHS.

five cents each, by addressing the Commissioner ci Patents.

Washington, D. C.

